Helpful Info

This is the first place to find answers to the most common questions asked about OnStar. If you have a question that is not addressed here, please contact us or call us directly at 1.888.4.ONSTAR (1.888.466.7827). Or if you are an OnStar subscriber, push the blue OnStar button in your vehicle.

Why Do I Need OnStar?

> Subscription Transfers

How Do I Get OnStar?

OnStar Vehicle Diagnostics

How Do I Use OnStar?

Analog-to-Digital Transition

How Do I Pay For OnStar?

Plans and Services

OnStar Turn-by-Turn Navigation

Crisis Assist

Subscription Transfers

Q1.	If I purchase a new vehicle, can I transfer my OnStar service from my previous vehicle?
A1.	You may transfer your OnStar subscription if: you have an active, customer-paid OnStar subscription and account the primary driver is the same for both vehicles the new vehicle comes equipped with OnStar hardware you still own your old vehicle; it cannot be deactivated or enrolled with a different owner
Q2.	How do I transfer my OnStar subscription to my new OnStar-equipped vehicle?
A2.	You can transfer your OnStar subscription during your new vehicle enrollment, either through a dealer representative or by pushing your blue OnStar button.
Q3.	If I've already sold my OnStar-equipped vehicle, can I transfer my subscription to the new owner?
A3.	If you are no longer driving your OnStar-equipped vehicle and want to transfer your subscription to a new owner, please call 1.888.4.ONSTAR (1.888.466.7827) and an Advisor will assist you.
Q4.	What do I do if I'm still receiving OnStar Vehicle Diagnostics emails for a car I no longer own?
A4.	To cancel your OnStar Vehicle Diagnostics service at any time, simply call 1.888.4.ONSTAR (1.888.466.7827), listen for the Vehicle Diagnostics Service prompt, and follow the instructions. If you are deaf, hard-of-hearing, or speech impaired, you may call our TTY number at 1.877.248.2080. Please allow 30 days to process your cancellation.